package cn.demo.framework.web.service;

import cn.demo.common.constant.CacheConstants;
import cn.demo.common.constant.CommonConstants;
import cn.demo.common.constant.UserConstants;
import cn.demo.common.core.domain.entity.SysRole;
import cn.demo.common.core.domain.entity.SysUser;
import cn.demo.common.core.domain.model.LoginUser;
import cn.demo.common.core.domain.model.UserInfo;
import cn.demo.common.core.redis.RedisCache;
import cn.demo.common.enums.UserStatus;
import cn.demo.common.exception.ServiceException;
import cn.demo.common.exception.user.*;
import cn.demo.common.utils.DateUtils;
import cn.demo.common.utils.MessageUtils;
import cn.demo.common.utils.ObjUtils;
import cn.demo.common.utils.StringUtils;
import cn.demo.common.utils.ip.IpUtils;
import cn.demo.framework.manager.AsyncManager;
import cn.demo.framework.manager.factory.AsyncFactory;
import cn.demo.sys.service.ISysConfigService;
import cn.demo.sys.service.ISysRoleService;
import cn.demo.sys.service.ISysUserService;
import jakarta.annotation.Resource;
import org.springframework.stereotype.Component;

import java.util.Set;

/**
 * 登录校验方法
 *
 * @author ruoyi
 */
@Component
public class SysLoginService {
    @Resource
    private TokenService tokenService;


    @Resource
    private RedisCache redisCache;

    @Resource
    private ISysUserService userService;

    @Resource
    private ISysConfigService configService;
    @Resource
    private SysPasswordService passwordService;

    @Resource
    private SysPermissionService permissionService;
    @Resource
    private ISysRoleService roleService;

    /**
     * 登录验证
     *
     * @param username 用户名
     * @param password 密码
     * @param code     验证码
     * @param uuid     唯一标识
     * @return 结果
     */
    public String login(String username, String password, String code, String uuid) {
        // 验证码校验
        validateCaptcha(username, code, uuid);
        // 登录前置校验
        loginPreCheck(username, password);
        // 查询用户信息
        LoginUser loginUser = getLoginUser(username);
        UserInfo user = loginUser.getUserInfo();
        // 校验密码
        passwordService.validate(user, password);
        // 记录登录日志
        AsyncManager.me().execute(AsyncFactory.recordLogininfor(username, CommonConstants.LOGIN_SUCCESS, MessageUtils.message("user.login.success")));
        // 记录登录信息
        recordLoginInfo(loginUser.getUserId());
        // 生成token
        return tokenService.createToken(loginUser);
    }


    // 查询用户信息
    public LoginUser getLoginUser(String username) {
        SysUser sysUser = userService.selectUserByUserName(username);

        if (ObjUtils.isNull(sysUser)) {
            AsyncManager.me().execute(AsyncFactory.recordLogininfor(username, CommonConstants.LOGIN_FAIL, MessageUtils.message("user.not.exists")));
            throw new ServiceException("登录用户：" + username + " 不存在");
        } else if (UserStatus.DELETED.getCode().equals(sysUser.getDelFlag())) {
            AsyncManager.me().execute(AsyncFactory.recordLogininfor(username, CommonConstants.LOGIN_FAIL, MessageUtils.message("user.password.delete")));
            throw new ServiceException("对不起，您的账号：" + username + " 已被删除");
        } else if (UserStatus.DISABLE.getCode().equals(sysUser.getStatus())) {
            AsyncManager.me().execute(AsyncFactory.recordLogininfor(username, CommonConstants.LOGIN_FAIL, MessageUtils.message("user.blocked")));
            throw new ServiceException("对不起，您的账号：" + username + " 已停用");
        }
        // 角色集合
        Set<SysRole> roles = roleService.selectRoleSetByUserId(sysUser.getUserId());
        Set<String> roleKeys = permissionService.getRoleKeys(sysUser,roles);

        // 权限集合
        Set<String> permissions = permissionService.getMenuPermission(sysUser, roleKeys);
        // 部门集合
        Set<String> deptIds = userService.getDeptIds(sysUser);

        LoginUser loginUser = new LoginUser(sysUser);
        loginUser.setRoleKeys(roleKeys);
        loginUser.setRoles(roles);
        loginUser.setPermissions(permissions);
        loginUser.setDeptIds(deptIds);
        return loginUser;
    }

    /**
     * 校验验证码
     *
     * @param username 用户名
     * @param code     验证码
     * @param uuid     唯一标识
     * @return 结果
     */
    public void validateCaptcha(String username, String code, String uuid) {
        boolean captchaEnabled = configService.selectCaptchaEnabled();
        if (captchaEnabled) {
            String verifyKey = CacheConstants.CAPTCHA_CODE_KEY + StringUtils.nvl(uuid, "");
            String captcha = redisCache.getCacheObject(verifyKey);
            redisCache.deleteObject(verifyKey);
            if (captcha == null) {
                AsyncManager.me().execute(AsyncFactory.recordLogininfor(username, CommonConstants.LOGIN_FAIL, MessageUtils.message("user.jcaptcha.expire")));
                throw new CaptchaExpireException();
            }
            if (!code.equalsIgnoreCase(captcha)) {
                AsyncManager.me().execute(AsyncFactory.recordLogininfor(username, CommonConstants.LOGIN_FAIL, MessageUtils.message("user.jcaptcha.error")));
                throw new CaptchaException();
            }
        }
    }

    /**
     * 登录前置校验
     *
     * @param username 用户名
     * @param password 用户密码
     */
    public void loginPreCheck(String username, String password) {
        // 用户名或密码为空 错误
        if (StringUtils.isEmpty(username) || StringUtils.isEmpty(password)) {
            AsyncManager.me().execute(AsyncFactory.recordLogininfor(username, CommonConstants.LOGIN_FAIL, MessageUtils.message("not.null")));
            throw new UserNotExistsException();
        }
        // 密码如果不在指定范围内 错误
        if (password.length() < UserConstants.PASSWORD_MIN_LENGTH
                || password.length() > UserConstants.PASSWORD_MAX_LENGTH) {
            AsyncManager.me().execute(AsyncFactory.recordLogininfor(username, CommonConstants.LOGIN_FAIL, MessageUtils.message("user.password.not.match")));
            throw new UserPasswordNotMatchException();
        }
        // 用户名不在指定范围内 错误
        if (username.length() < UserConstants.USERNAME_MIN_LENGTH
                || username.length() > UserConstants.USERNAME_MAX_LENGTH) {
            AsyncManager.me().execute(AsyncFactory.recordLogininfor(username, CommonConstants.LOGIN_FAIL, MessageUtils.message("user.password.not.match")));
            throw new UserPasswordNotMatchException();
        }
        // IP黑名单校验
        String blackStr = configService.selectConfigByKey("sys.login.blackIPList");
        if (IpUtils.isMatchedIp(blackStr, IpUtils.getIpAddr())) {
            AsyncManager.me().execute(AsyncFactory.recordLogininfor(username, CommonConstants.LOGIN_FAIL, MessageUtils.message("login.blocked")));
            throw new BlackListException();
        }
    }

    /**
     * 记录登录信息
     *
     * @param userId 用户ID
     */
    public void recordLoginInfo(String userId) {
        SysUser sysUser = new SysUser();
        sysUser.setUserId(userId);
        sysUser.setLoginIp(IpUtils.getIpAddr());
        sysUser.setLoginDate(DateUtils.getNowDate());
        userService.updateUserProfile(sysUser);
    }
}
